WO2015180400A1

WO2015180400A1 - Wide-angle luminous led bulb with cooling flue

Info

Publication number: WO2015180400A1
Application number: PCT/CN2014/089737
Authority: WO
Inventors: 史杰
Original assignee: 史杰
Priority date: 2014-03-26
Filing date: 2014-10-28
Publication date: 2015-12-03
Also published as: CN103953870A; CN203836705U

Abstract

A wide-angle luminous LED bulb with a cooling flue comprises a lamp holder (1), a light source assembly (4), an upper radiator (5), a lower radiator (3), a driver (7) and a diffuser (8). The light source assembly (4) is mounted at the joint part of the upper radiator (5) and the lower radiator (3). The upper radiator (5) and the lower radiator (3) are arranged in the diffuser, and are respectively provided with a hollow channel. The lamp holder (1) is provided with a ventilation hole (2), and the ventilation hole (2) is in communication with the hollow channel to form a cooling flue (6). Air convection is formed via the flue to increase the cooling effect. The light source assembly (4) adopts a curved aluminium substrate, and surrounds the joint part of the upper radiator (5) and the lower radiator (3) circumferentially, or the aluminium substrate is curved into a petaloid shape to ensure sufficient contact areas between the aluminium substrate and the radiators, and at the same time the luminous angle of the bulb is optimized.

Description

Large angle LED bulb with cooling flue

Technical field

The utility model relates to a large-angle luminous LED bulb with a heat dissipating flue.

Background technique

In recent years, with the rapid development of the lighting technology industry, light-emitting diodes (LEDs) are widely used in various fields of the lighting industry because of their high brightness, low energy consumption, long service life, and environmental protection.

As the performance of the LED increases, the heat generated by the LED light source limits the power and luminous flux of the whole lamp. Usually, the heat dissipation effect of the whole lamp is satisfied, and a large heat sink is required, which results in a cumbersome structure and high cost. Therefore, it is urgent to develop a large-angle LED bulb structure with small size and better heat dissipation performance.

The above problems are issues that should be considered and resolved during the design and production of LED bulbs.

Utility model content

The purpose of the utility model is to provide a large-angle light-emitting LED light bulb with a heat-dissipating flue. In the prior art, there is a need for a large heat sink to meet the heat-dissipating requirements of the whole lamp, and the conventional LED light source is flatly attached to the light-emitting angle. Small problem.

The technical solution of the utility model is:

A large-angle light-emitting LED bulb with a heat-dissipating flue, comprising a lamp holder, a light source assembly, an upper radiator, a lower radiator, a driving and a translucent cover; the light source assembly is mounted on a combination of an upper radiator and a lower radiator The upper heat sink and the lower heat sink are both disposed in the light transmissive cover, and the upper heat sink and the lower heat sink are respectively provided with a hollow passage, the lamp socket is provided with a ventilation hole, and the ventilation hole communicates with the hollow passage The combination forms a heat-dissipating flue.

Preferably, the light source assembly adopts a curved aluminum substrate, and the light source assembly is bent to form a circumferential shape, and is enclosed in a ring at a joint portion of the upper heat sink and the lower heat sink;

Or the light source component adopts a flat aluminum substrate, and the light source assembly adopts the upper end aluminum substrate to bend upward and the lower end aluminum substrate is bent downward, and the whole is petal-like, thereby increasing the illumination angle.

Preferably, the LED bulb adopts a candle bulb or a bulb.

Preferably, the upper heat sink and the lower heat sink are made of aluminum, heat conductive plastic parts.

Preferably, the transparent cover is made of glass or plastic material.

The utility model has the beneficial effects that the utility model has a large-angle light-emitting LED bulb with a heat-dissipating flue, and uses a hollow upper radiator, a lower radiator and a lamp holder with a ventilation hole to form a heat-dissipating flue, thereby realizing Good heat dissipation. The light source assembly adopts a curved aluminum substrate structure, and circumferentially surrounds the upper and lower heat sink joints or bends each aluminum substrate into a petal shape again, thereby ensuring sufficient contact area between the aluminum substrate and the heat sink, and optimizing the light-emitting angle of the light bulb. The high-angle LED bulb with heat-dissipating flue has scientific and reasonable design, simple structure, reasonable and compact structure, high efficiency, stability, energy saving, environmental protection, simple process structure, good sealing performance, simple and beautiful lamps, and the like. It can be improved to meet the needs of large-scale, low-cost industrial production.

DRAWINGS

1 is a schematic structural view of Embodiment 1 of the present invention;

2 is a schematic structural view of Embodiment 2 of the present invention;

Among them: 1-lamp base, 2-ventilation hole, 3-lower heat sink, 4-light source assembly, 5-up heat sink, 6-heat-dissipating flue, 7-drive, 8-transparent cover.

detailed description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Embodiment 1

As shown in Figure 1, a high-angle light-emitting LED bulb with a heat-dissipating flue, comprising a lamp holder 1, a light-transmissive cover 8, a light source assembly 4, an upper heat sink 5, a lower heat sink 3 and a drive 7; The light source assembly 4 is mounted on a joint portion of the upper heat sink 5 and the lower heat sink 3, and the upper heat sink 5 and the lower heat sink 3 are both disposed in the light transmissive cover, and the upper heat sink 5 and the lower heat sink 3 are disposed. The hollow passages are connected to the outside of the transparent cover, and the sockets 1 are provided with ventilation holes 2, and the ventilation holes 2 communicate with the hollow passages to form the heat dissipation flue 6. The light source assembly 4 is a curved aluminum substrate, and the light source assembly 4 is bent to form a circumferential shape, and is enclosed in a ring to be fixed at a joint portion of the upper heat sink 5 and the lower heat sink 3.

The high-angle light-emitting LED bulb with the heat-dissipating flue of the first embodiment, the aluminum substrate is directly bent and formed by an aluminum plate, and the aluminum plate and the heat sink surface are connected at the lower portion, thereby increasing the contact area between the light source assembly 4 and the heat sink. . The light source assembly 4 adopts a curved aluminum substrate, and the distribution around the heat sink ensures a sufficient contact area between the light source assembly 4 and the heat sink to ensure the heat dissipation effect of the light source assembly 4.

Embodiment 2

As shown in FIG. 2, this embodiment is a high-angle light-emitting LED bulb with a heat-dissipating flue, including a lamp. a housing 1, a light transmissive cover 8, a light source assembly 4, an upper heat sink 5, a lower heat sink 3, and a drive 7; the light source assembly 4 is mounted at a joint portion of the upper heat sink 5 and the lower heat sink 3, the upper heat sink 5 and the lower heat sink 3 are disposed in the transparent cover, the upper heat sink 5 and the lower heat sink 3 are respectively provided with a hollow passage, the lamp holder 1 is provided with a ventilation hole 2, and the ventilation hole 2 communicates with the hollow passage The heat radiating flue 6 is combined to form. The light source assembly 4 adopts a flat aluminum substrate, and the light source assembly 4 is bent by the upper end aluminum substrate, and the upper and lower end aluminum substrates are bent downward, and the whole is petal-like, thereby increasing the illumination angle.

In the second embodiment, each of the aluminum substrates can be bent twice, so that the lower portion of each of the aluminum substrates is bent outward, the upper portion is bent inward, and each of the light sources is welded, so that a part of the light source is obliquely illuminated upward. A part of the light source is illuminated obliquely downward, and the angle of illumination is further increased in the case of ensuring a sufficient contact area with the heat sink.

In the first embodiment and the second embodiment, the air passages of the upper radiator 5 and the lower radiator 3 are disposed, and the socket 1 is also provided with a ventilation hole 2, so that the hollow passage communicates with the ventilation hole 2 to form a heat dissipation flue 6 when the lamp is lit. When the air convection is formed in the heat dissipation flue 6, the heat generated by the light source assembly 4 is taken out to achieve a good heat dissipation effect. In the first embodiment and the second embodiment, on the basis of the common LED candle bulb or the bulb lamp, the upper and lower hollow heat sinks and the lamp socket 1 with the ventilation holes 2 are added, and the curved aluminum substrate is used, which realizes the heat dissipation of the whole lamp. The entire lamp has a larger illumination angle. The upper heat sink 5 and the lower heat sink 3 are made of aluminum, heat conductive plastic or other materials. The translucent cover 8 can be made of glass, plastic or other transparent material.

The light source assembly 4 of the first embodiment and the second embodiment adopts a curved aluminum substrate structure, and surrounds the joint portion of the upper and lower heat sinks 3 in a circumferential shape or bends each aluminum substrate into a petal shape again, thereby ensuring sufficient contact area between the aluminum substrate and the heat sink. At the same time, the angle of illumination of the bulb is optimized.

Claims

A large-angle light-emitting LED bulb with a heat-dissipating flue, comprising: a lamp holder (1), a light source assembly (4), an upper heat sink (5), a lower heat sink (3), a drive (7), and a light transmissive cover (8); the light source assembly (4) is mounted on a joint portion of the upper heat sink (5) and the lower heat sink (3), and the upper heat sink (5) and the lower heat sink (3) are both provided The upper heat sink (5) and the lower heat sink (3) are each provided with a hollow passage, and the lamp holder (1) is provided with a ventilation hole (2), and the ventilation hole (2) is connected. The hollow channels combine to form a heat dissipating flue (6).
The large-angle light-emitting LED bulb with a heat-dissipating flue according to claim 1, wherein the light source assembly (4) adopts a curved aluminum substrate, and the light source assembly (4) is bent to form a circumference and is surrounded by a light source. The ring is fixed at the joint portion of the upper radiator (5) and the lower radiator (3);

Or the light source component (4) adopts a flat aluminum substrate, and the light source component (4) is bent by the upper end aluminum substrate, and the upper and lower end aluminum substrates are bent downward, and the whole is petal-like.
The large-angle light-emitting LED bulb with a heat-dissipating flue according to claim 2, wherein the LED bulb adopts a candle bulb or a bulb.
A large-angle light-emitting LED light bulb with a heat-dissipating flue according to any one of claims 1 to 3, wherein the upper heat sink (5) and the lower heat sink (3) are aluminum parts and heat-conducting. Made of plastic parts.
The high-angle light-emitting LED bulb with a heat-dissipating flue according to claim 4, wherein the translucent cover (8) is made of glass or plastic material.